Sorry forgot you guys dont speak new zealand english

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Was wondering if the headers/extracors/exhaust manifold (What do you call them?) on all the isuzu engine variants are interchangeable physically. As i found a cheap set for my 2.6 but they were listed as being for a 2.3, Was just wondering if i should buy them or not.
But it turns out the seller listed them incorectly and they are for a diesel engine.
That being said it would still be interesting to know.
